# PowerShell Commands for Support / SME / Helpdesk

Practical commands for **Support Engineers and SMEs** managing user
issues, workstations, and basic troubleshooting.

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# Table of Contents

1.  Computer Information
2.  Network Troubleshooting
3.  Process and Application Issues
4.  Service Troubleshooting
5.  File Management
6.  Event Logs
7.  Remote Computer Access
8.  Useful Support Commands

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# 1. Computer Information

``` powershell
Get-ComputerInfo
hostname
whoami
```

Check uptime:

``` powershell
(Get-CimInstance Win32_OperatingSystem).LastBootUpTime
```

------------------------------------------------------------------------

# 2. Network Troubleshooting

Check IP:

``` powershell
Get-NetIPAddress
ipconfig
```

Ping test:

``` powershell
Test-Connection google.com
```

Check if port open:

``` powershell
Test-NetConnection server01 -Port 443
```

DNS lookup:

``` powershell
Resolve-DnsName google.com
```

------------------------------------------------------------------------

# 3. Process and Application Issues

List processes:

``` powershell
Get-Process
```

Find application:

``` powershell
Get-Process chrome
```

Kill frozen app:

``` powershell
Stop-Process -Name chrome -Force
```

Start application:

``` powershell
Start-Process notepad
```

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# 4. Service Troubleshooting

Check services:

``` powershell
Get-Service
```

Restart a service:

``` powershell
Restart-Service spooler
```

Check if running:

``` powershell
Get-Service spooler
```

------------------------------------------------------------------------

# 5. File Management

List files:

``` powershell
Get-ChildItem
```

Copy files:

``` powershell
Copy-Item file.txt C:\Temp
```

Delete file:

``` powershell
Remove-Item file.txt
```

Read log file:

``` powershell
Get-Content log.txt -Tail 50
```

------------------------------------------------------------------------

# 6. Event Logs

Recent system errors:

``` powershell
Get-WinEvent -LogName System -MaxEvents 20
```

Application errors:

``` powershell
Get-WinEvent -LogName Application -MaxEvents 20
```

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# 7. Remote Computer Access

Connect remote PowerShell:

``` powershell
Enter-PSSession PC01
```

Run command remotely:

``` powershell
Invoke-Command -ComputerName PC01 -ScriptBlock { Get-Service }
```

Restart remote computer:

``` powershell
Restart-Computer PC01
```

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# 8. Useful Support Commands

Check disk space:

``` powershell
Get-Volume
```

List logged in users:

``` powershell
quser
```

Find large files:

``` powershell
Get-ChildItem C:\ -Recurse |
Sort Length -Descending |
Select -First 10
```

Check installed updates:

``` powershell
Get-HotFix
```